Which part of the device is used to measure the change that occurs in the system when a chemical reaction occurs AND which change is measured using this part of the system?

A.
Part: Thermometer // Measured: Temperature

B.
Part: Cork Stopper // Measured: Temperature

C.
Part: Styrofoam Cups // Measured: Speed of Water Movement

D.
Part: Stirrer // Measured: Speed of Water Movement

A.

Part: Thermometer // Measured: Temperature